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Associations between cognitive impairment and P300 mean amplitudes in individuals with bipolar disorder in remission
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| Title: | Associations between cognitive impairment and P300 mean amplitudes in individuals with bipolar disorder in remission |
| Authors: | Toyoshima, Kuniyoshi Browse this author →KAKEN DB | | Toyomaki, Atsuhito Browse this author →KAKEN DB | | Miyazaki, Akane Browse this author | | Martinez-Aran, Anabel Browse this author | | Vieta, Eduard Browse this author | | Kusumi, Ichiro Browse this author →KAKEN DB |
| Keywords: | Cognitive complaints | | Cognitive function | | Neuropsychological assessment | | Euthymia |
| Issue Date: | Aug-2020 |
| Publisher: | Elsevier |
| Journal Title: | Psychiatry research |
| Volume: | 290 |
| Start Page: | 113125 |
| Publisher DOI: | 10.1016/j.psychres.2020.113125 |
| Abstract: | Cognitive functions are often affected during the euthymic state of bipolar disorder (BD). In this study, we investigated the associations among cognitive complaints, objective cognitive functions, and the mean amplitudes of the P300 event-related potential (ERP) wave in individuals with BD. The study population comprised 33 individuals with BD who were in remission and was conducted at Hokkaido University Hospital, Sapporo, Japan. Cognitive complaints were assessed using the Japanese version of the tool named "cognitive complaints in bipolar disorder rating assessment (COBRA)", whereas objective cognitive functions were measured by neuropsychological tests. P300 mean amplitudes were investigated during two- and three-stimulus oddball tasks and showed significant correlations with neuropsychological test scores at all electrode locations, confirming that ERPs and objective cognitive tests that assessed attention and memory function tend to coincide; however, neither P300 amplitudes nor neuropsychological test scores were correlated with COBRA scores. ERPs most likely represent the neurophysiological basis for objective rather than subjective cognitive function in euthymic individuals. Thus, our results suggest that objective cognitive function is related more to P300 mean amplitude scores than subjective cognitive function in individuals with BD. |
| Rights: | © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/82347 |
| Appears in Collections: | 医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 豊島 邦義
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